A:
Positive:
1 x 276637255 x 553274525 x 110654941 x 674725137 x 201925197 x 140425205 x 134945685 x 40385985 x 280851025 x 269893425 x 80774925 x 5617
Negative:
-1 x -27663725-5 x -5532745-25 x -1106549-41 x -674725-137 x -201925-197 x -140425-205 x -134945-685 x -40385-985 x -28085-1025 x -26989-3425 x -8077-4925 x -5617
Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the divisors of larger numbers. To find the factor combinations of the number 27,663,725, it is easier to work with a table - it's called factoring from the outside in.
We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table. Then, below that, write the numbers as a negative as well.
| 1 | 27,663,725 | |
| -1 | -27,663,725 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 27,663,725.
Example:
1 x 27,663,725 = 27,663,725
and
-1 x -27,663,725 = 27,663,725
Notice both answers equal 27,663,725
With that explanation out of the way, let's continue. Next, we take the number 27,663,725 and divide it by 2:
27,663,725 ÷ 2 = 13,831,862.5
If the quotient is a whole number, then 2 and 13,831,862.5 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 27,663,725 | |
| -1 | -27,663,725 |
Now, we try dividing 27,663,725 by 3:
27,663,725 ÷ 3 = 9,221,241.6667
If the quotient is a whole number, then 3 and 9,221,241.6667 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 27,663,725 | |
| -1 | -27,663,725 |
Let's try dividing by 4:
27,663,725 ÷ 4 = 6,915,931.25
If the quotient is a whole number, then 4 and 6,915,931.25 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 27,663,725 | |
| -1 | 27,663,725 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 41 | 137 | 197 | 205 | 685 | 985 | 1,025 | 3,425 | 4,925 | 5,617 | 8,077 | 26,989 | 28,085 | 40,385 | 134,945 | 140,425 | 201,925 | 674,725 | 1,106,549 | 5,532,745 | 27,663,725 |
| -1 | -5 | -25 | -41 | -137 | -197 | -205 | -685 | -985 | -1,025 | -3,425 | -4,925 | -5,617 | -8,077 | -26,989 | -28,085 | -40,385 | -134,945 | -140,425 | -201,925 | -674,725 | -1,106,549 | -5,532,745 | -27,663,725 |
Here are some more numbers to try:
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